Disk drill.



A No. @4.680, PATENTBD 00T. so, 1906.

G. H. PELTON.

DISK DRILL.

APPLICATION FILED 00T.14, 1906.

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UNITED STATES 'PAENT OFFICE.'

CHARLES H. PELTON, OF SPRINGFIELD, OHIO, ASSIGOR TO THE THOMAS MANUFACTURING COMPANY, OF SPRINGFIELD, OHIO, ACORPORATION OF OHIO..

DISK ,RlLL.

Specification of Letters Patent.

Patented Oct. 30, v1906 AApplication filed October 14, i905. Serial No. 282,696.

v a citizen of the United States, residing at Springfield, in the county of Clark and State of Ohio, have invented lcertain new and useful Improvements in Disk Drills, of which the following is a specification, reference being had therein to the accompanying drawings.

- This invention relates to disk drills, and more particularly to that class known as single-disk drills, in which each drag-bar of the seeding-machinecarries a single furrow-opening disk.

The object of my present invention is to provide a simple and eflicient means whereby the angular relation of the disk to the dragbar and line of draft may be readily adjusted to suit different conditions of soil, &c., the structure being such that the firmness of the connection between the disk and drag-bar is in no way diminished, the parts remaining fixed in any position to which they may be adjusted without any possibility of working loose or shifting under the strains to which theyare subjected when in use.

To these and other ends my invention consists in certain novel features-which I will now proceed. to describe and will then particul arly point out in the claims.

In the accompanying drawings, Figure 1 isv a side elevation of a portion of a drag-bar and a furrow-opener connected therewith,

the same having my improvements applied thereto in one form. Fig. 2 is a detail view of a portion of the disk-support wlth the drag-bar and disk removed. Fig, 3 is a detail view of the inner face of the wedge. Fig.

4 is an edge view of the wedge, Figs. 2, 3, and 4 being on a somewhat-enlarged scale'. Fig. 5 is a detail sectional view taken on the line of Fig. l and looking in the direction of Li the arrows, showing the parts adjusted to lar view showing the greater anglo.

iit against the upper .and lower yedges of -the drag-bar andthe transverse terminal flange or shoulder 7 to fit against the end of the drag-bar.

The usual bolts 8 pass throughl the Vdrag-bar and disk-support .and serve to lfirmly unite the two. This construction -is av usual and approved construction to Awhich my invention is applicable.

Owing to the varying conditions of soil, &c. it is sometimes desirable to change the angle y of the furrow-opening ydisk to the line of draft in order` to form a wider or narrower furrow,

j as the angle is greater or less. Various co'n- 1. .structions have been proposed for effecting this result; but so far as I am aware they have \not been adopted in practice, chiefly i by reason of their complication and expense and by reason of their failure to hold the maximum angle to the line of draft. When,v

parts firmly in adjusted position, owing usually to the fact that their construction involves a pivotal and frictional clamping connection which lacks ability to withstand the strains of use. To overcome these obj ections and effectually and readily adjust and firmly hold the parts, I employ an adjustingwedge, which is interposed between the'dragbar and disk-support. This wedge is shown in detail in Figs. 3 and 4 and is indicated as a whole -by the reference-numeral 9. It is slotted centrally from its free end lengthwise for a considerable distance, as indicated at 10, to accommodate the bolts 8, whichconnect the drag-bar and disk-support, said slot permitting the wedge to be adjusted in the direction of its length between the drag-bar and disk-support. By reason of this adjustment of the wedge the angle of the disk relatively to the drag-bar, and consequently to the line of draft, may be readily varied, for it will be seen that when the wedge is entirely omitted and the drag-bar is clamped directly against the face of the disk-support the disk is then at a on the contrary, the wedge is inserted between the disk-support and drag-bar to itsv maximum extent, as shown in Fig. 5, then the disk is at a minimum angle to the line of draft, the inclined face 1 1 of the wedge bearing against the face of the seat 5 0f the disksupport for its full length. Any intermediate angle may be readily given to the disk by adjusting the wedge to different intermediate positions, the rear end of the drag-bar resting roo against the seat of the disk-support and the front edge of said seat resting against the inclined face of the wedge. Whatever position is given to the parts the bolts 8 when tightened up will firmly unite the same an-d hold them against displacement when at work. The wedge is preferably provided with lugs 12 at its outer or thicker end, which are accurately held in place by the connectingbolts 8, and these latter are relieved'of transverse strains when the parts are seated.

My invention in its broadest form contem-j plates'the interposition of a wedge between the drag-bar and disk-support without any special construction of these latter parts for purposes of cooperation with the wedge, andinA this'form of my invention the wedge consti-tutes an attachment or addition which may be applied to any drag-bar and disksupport of the general type shown. I prefer, however, for additional security in the firm locking of the parts together after adjustment to provide special means for locking the wedgeagainst longitudinal movement relatively to the other parts. To this end in myv preferred construction I provide at-the forward end of the seat 5 a transverse rib or ltooth 13, while the face of the wedgeV which lies next to said seat, being the inclined face 11, is provided at intervals with transverse grooves 14, adapted to receive the rib 13. Of course it will be understood that I this arrangement may be reversed and that Y I thev seat may be provided with grooves and i 45 the wedge with corresponding ribs;- When this `constructionfis employed, the wedge is adjusted to 'a position suchvthat, giving the desired angle to the disk, .it will whenvv the connecting bolts are tightened up receive the rib13 in one of the grooves 14, and thereby firmly lock the wedge against movement in thefdirection of its length.` `When this construction is employed, the slipping outof-the wedge and 'consequent loosening of the parts is rendered practically impossible.'

i It will be seen that I have provided a simple and inexpensive means for adjusting-the disk to any desired angle to the line of draft within practical limits, the construction beingv such as to firmly hold the parts when adjusted and being in its simpler form applicable to furrow-openers already in use.

I do not wish to be understood as limiting myself to the precise details of construction hereinbefore described, and shown in the accompanying drawings, as it is obvious that these details may be modified without departing from the principle of my invention.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1, In a disk drill, the combination, with a drag-bar, a disk-support provided with a furrow-opening disk and having a seat to receive the drag-bar, and bolts connecting said drag-bar and disk-support, of a wedge adapted to be inserted and adjusted longitudinally of the drag-bar between the drag-bar and disk-support and fitting within the seat of the latter, substantially as described.

2. In a disk drill, the combination, with a drag-bar, a disk-support provided with a furrow-opening disk and having a seat to receive the drag-bar, and bolts connecting-said drag-bar and disk-support, of a wedge adapted to be inserted and adjusted longitudinally of the drag-bar between the drag-bar and disk-support and fitting within the seat of the latter, said wedge being slotted longitudinally for the passage of the connecting-bolts, substantially as described.

3. In a disk drill, the combination, with a drag-bar, a disk-support provided with a `furrow-opening disk and having a seat to reinserted and adjusted longitudinally of the Ldrag-bar between said drag-bar and disksupport, said wedge fitting the seat of the disk-support, extending forward beyond the same, and provided with lugs to embrace the drag-bar, substantially as described.

In testimony whereof I aflix my signature in presence of two witnesses.

CHARLES H. PELTON. Witnesses E. O. HAGAN, IRVINE MILLER.

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